2024 Mercedes-Benz CLA
Fuel economy, Safety ratings, Consumer complaints, Transport Canada recalls
Fuel Economy
Fuel economy varies by configuration and powertrain.
| Trim | City | Highway | Combined | Fuel |
|---|---|---|---|---|
| Auto (AM8), 4 cyl, 2.0 L, Turbo | 26 | 36 | 30 | Premium |
| Auto (AM8), 4 cyl, 2.0 L, Turbo | 25 | 35 | 28 | Premium |
Safety Ratings
Safety rating information is not available from the data source for this vehicle.
Consumer Complaints (3)
This vehicle has suffered from persistent, substantial, and uncorrected defects, including but not limited to failures in the 48V mild-hybrid electrical system, lithium-ion battery system, DC/DC converter and coolant system. These defects have substantially impaired the vehicle’s use, value and safety as well as my safety, and remain unresolved despite multiple repair attempts at two separate authorized Mercedes-Benz dealerships in St. Louis, MO. SUMMARY OF DEFECTS •Multiple 48 V battery failures and replacements •Multiple replacements of DC/DC converters and failures •Multiple Coolant System failures •Sudden vehicle shutdowns while driving •Numerous non-start issues •Numerous red warning alerts related to the 48 V system •Multiple towing incidents (One involving the police) Despite extensive repair attempts, including replacement of major components, this vehicle continues to fail and is currently still at Mercedes-Benz of St. Louis unrepaired. These repeated repair failures demonstrate the vehicle cannot be repaired to conform with warranty standards. SAFETY INCIDENT My most recent safety incident: On March 10, 2026, this vehicle shut down in the middle of a busy multi-lane roadway, requiring police assistance and emergency towing due to the safety hazard presented. The vehicle has remained in possession of Mercedes-Benz St. Louis since that date (over 45 days) and remains inoperable and unrepaired. This vehicle had also been towed to Plaza Motors two additional times for the same reasons and was there for many days adding to this amount (See attachments). MULTIPLE DEALERSHIPS/FAILED REPAIRS The vehicle has been serviced by both: *Plaza Motor Compay, St. Louis *Mercedes-Benz of St. Louis Despite independent repair attempts by both authorized dealerships, the same defects persist. This confirms that the issue is inherent to the vehicle itself, not a service related issue.
The engine light comes on constantly. The 1st incident happened 05/2024. I have reported this to the dealership and was told it was ok to drive. Then it kept happening, on 11/05/24 I took the vehicle in for repair. It was returned 11/08/24 and ilthe engine light turned on again. I was told to take the car to the dealership on 11/13/24 and the vehicle has been at the dealership until now 12/11/24. The vehicle stalled on an occasion while in motion. I had to press the start button to continue driving the car. Another occasion the dashboard turned off completely yet the engine light was on. I have voiced to the dealership that I don’t feel safe in the vehicle. On 12/06/25 the dealership notified me a part was ordered to resolve the issue with the engine. Again, I don’t feel safe driving this car. I have voiced this numerous times to the dealership and customer service. I’m waiting on obtaining the documentation from the dealership to provide to you.
Car has been sent to dealership service center multiple times since we bought it in June 2024 for a sound created by rear camera. Dealership acknowledged sound made by camera. Last thing shop did was place a “foam padding” to help reduce sound. But it did not help with the noise. They claim that it is “usual” across all GLA250. It is consistently making a noise that it distracts the driver. I tried to reach out to dealersip Sales dept and they could not help us with the car and suggested we talk to corporate but they also just referred us back to the dealership service center.
Transport Canada Recall Data
Canadian recall campaigns — may differ from U.S. NHTSA recalls.
Issue: Under certain conditions, a software problem for the electronic stability control (ESP) control unit could cause the power brake assist not to work properly. As a result, there may be an increase in brake pedal effort and reduced braking. Note: This recall only affects plug-in hybrid (PHEV) models. Safety Risk: Reduced braking can cause extended stopping distances and increase the risk of a crash. Corrective Actions: Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to update the ESP control unit software.
Manufacturer: MERCEDES-BENZ
Issue: On certain vehicles, the fuel delivery module could fail. If this happens, the engine may run rough or may not start. This could also result in a sudden loss of engine power while driving. Note: This is an expansion of Transport Canada recall 2023-353. Safety Risk: A sudden loss of engine power could increase the risk of a crash. Corrective Actions: Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to replace the fuel delivery module.
Manufacturer: MERCEDES-BENZ
Issue: On certain vehicles, the accelerator pedal bracket may not have been welded properly. As a result, the pedal could deform and/or detach. If this happens, the accelerator pedal could stay applied and/or block the brake pedal, causing reduced braking. Safety Risk: A vehicle that doesn't slow down as expected or accelerates on its own could increase the risk of a crash. Additionally, reduced braking can increase the risk of a crash. Corrective Actions: Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to secure the accelerator pedal bracket.
Manufacturer: MERCEDES-BENZ
Issue: On certain vehicles, the 80 A fuse may not have been manufactured properly. As a result, the fuse could overheat and fail. If this happens, there could be a sudden loss of power to the wheels. This could also cause the instrument cluster not to work. Safety Risk: A fuse and wiring that overheats can create the risk of a fire. A sudden loss of power to the wheels could increase the risk of a crash. Warnings, tell-tales and gauges that don't display could also increase the risk of a crash. Corrective Actions: Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to replace the main fuse box.
Manufacturer: MERCEDES-BENZ
Issue: On certain vehicles, the bolt for the 48 V ground connection under the passenger seat may not have been tightened properly. As a result, the wiring could overheat and melt. Safety Risk: Wiring that overheats and melts can create the risk of a fire. Corrective Actions: Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to inspect and, if necessary, tighten the ground connection.
Manufacturer: MERCEDES-BENZ
Issue: On certain vehicles, the pyro fuse housing may not have been manufactured properly. As a result, the pyro fuse could loosen and cause damage to the electrical wiring. If this happens, there could be a loss of power to the wheels. Additionally, the pyro fuse may not work during a crash or part of the fuse could detach and be propelled towards the driver's feet. UPDATE - After Mercedes-Benz notified Transport Canada about this problem, they determined that there are no Canadian vehicles affected by it. Accordingly, this safety recall was withdrawn. Safety Risk: There is no safety risk, as there are no Canadian vehicles affected by this problem. Corrective Actions: This is not a recall. This notice was published for information only.
Manufacturer: MERCEDES-BENZ
Issue: On certain vehicles, a software problem could cause the cross-traffic alert system not to work. As a result, the system may not brake automatically if a road user is detected while the vehicle is backing out of a parking space. Safety Risk: A cross-traffic alert system that doesn't work could increase the risk of a crash. Corrective Actions: Mercedes-Benz will notify owners by mail and send a wireless over-the-air software update to the MBUX multimedia system and reset the parking control unit settings.
Manufacturer: MERCEDES-BENZ
Issue: On certain vehicles equipped with 4-wheel drive (4Matic), the transmission wiring harness may not be routed correctly. As a result, water could enter the wiring harness connector and cause a short circuit. Note: This recall is an expansion of Transport Canada recall no. 2024-342. Safety Risk: A short circuit can create the risk of a fire, even while the vehicle is parked and turned off. Corrective Actions: Mercedes-Benz will notify owners by mail and advise you to take your vehicle to a dealership to replace the transmission wiring harness.
Manufacturer: MERCEDES-BENZ
Transport Canada recalls may apply to vehicles sold in Canada. Verify with your dealer or Transport Canada.
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